Gbsus4 chord
Gb suspended fourth
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ukulele fretboard
G
Gb
G
Ab
A
Bb
B4
C
Db
D
Eb
E
F
Gb
G
B
C
C
Db5
D
Eb
E
F
Gb
G
Ab
A
Bb
B
C
Db
E
Eb
E
F
Gb1
G
Ab
A
Bb
B
C
Db
D
Eb
E
Gb
A
Ab
A
Bb
B4
C
Db
D
Eb
E
F
Gb
G
Ab
A
B
3
5
7
10
The Gbsus4 chord has the formula 1, 4, 5 with notes Gb, B, Db
Commonly used in pop, rock, and jazz, the suspended fourth chord usually has no third and therefore sounds open since it lacks a minor or major tonality. It can function as a preparatory chord before a resolution at the third.